19 lines
400 B
C++
19 lines
400 B
C++
#include <bits/stdc++.h>
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using namespace std;
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class Solution {
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public:
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int titleToNumber(string columnTitle) {
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reverse(columnTitle.begin(), columnTitle.end());
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int result = 0;
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for (int i = 0; i < columnTitle.length(); i++) {
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const char c = columnTitle[i];
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result += (c - 'A' + 1) * (int)pow(26, i);
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}
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return result;
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}
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};
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